Rail bridge



Patented Sept. 9, 1924.`-`

UNIT/ranv rsr-MT-{liqS -cncIL TYMM, OFLOUISvILLE, KENTUCKY. 1 -f i Y RAIL BRIDGE.` l

applicati@ aieufauguyst 1s, i923. serial Neasden.

Improvements in RailBridges,` ofvw-hich the following is a specification.

This invention-relates vto tan improvement in rail bridges and particularly to a 'bridge which is interposed between the adjoining Vends of two railsland supportedl bythe adjoining rails for forming a continuons rail surface to eliminate the jarring and vibrations created by the wheels of a vehicle passing from one rail to another.

The invention consists in providing the end of each rail with two holes or recesses of different bores to receive a pin or bridge of such form as to provide a smooth travelling surface from one rail to the other. y

The invention consists of certain novel features of construction and combinations of parts which will be hereinafter described and pointed out in the claims.

In the accompanying drawings- Figure 1 is a top plan View;

Figure 2 is a view in side elevation partly in section;

Figure 3 is an end view of a rail; and

Figure 4 isa perspective view of the Vpin or bridge and an end of a rail.

Each rail consists of the usual ball or tread 10, base fianges 11 and web 12. At the ends of each rail is formed in the'tread or ball 10 a. cylindrical recess 13 which is parallel to the tread of the rail and is exposed to a suitable width in the tread of the rail. This opening or exposed portion Min the tread is of less width than the width of the recess 13; Another recess 15 is formed in the end of the rail and parallel to the tread, and is a continuation of the recess 13, but of a smaller bore or diameter.

The bottoml of the recess 15 is on the same level with the bottom of the recess 13, and the center of the recess 15 is below vthe lcenter of the recess 13.

A pin or bridge consists of an cylindrical portion 16, conforming to the cylindrical recess 13 of the rail, having a flat or truncated upper surface 17 which conforms with the upper surface of the ball 10 ofthe rail. On each end of the enlarged portion 16 are shanks 18, 18, of less diameter than the portion 16, which fit the re- `cesses 15 of the rail ends. The shanks 18 aire eccentricallyarranged withirespectfto `the enlarged portion16 lw'vh'ereby.they will fit the recesses 15, fand prevent the bridge from rotating. i l" l lThe shanks'18 of the bridge are received in the recessesl' of the rail ends, while the 3 yenlarged port-ion 16' l'fits the recessesl3, and

the flat? portion'17 conforms to thesurface of r the railftread or ball and fills the' opening 14 formed in the tread 'i'n vthe ,forn'iation of the" recess' 13. v

vVVith'this construction thefshankfspermit i.

of the expansion and contraction of the rails and maintainrthem in a'linei'nent and insure the retention of the enlarged portion 16 in proper position between the intersecting ends of the rails to form a continuous traveling surfacefrom one rail tothe other. d

The two rails are joined together by means of fish'plates 19, 19, and bolts 20.

Having described my invention, what I claim is:

1. The combination vof rails each khaving two recesses in each .end thereof, one of which recesses is a continuation of the other and of a smaller bore and the bottom of the smaller recess is on the same level with the bottom of the larger recess, and a bridge interposed between the rail ends and com.-

posed ofan enlarged centrall portion to fit lindrical Shanks of uniform diameter on opposite sides of the enlarged portion received in the recesses of the smaller bores.

2. The combination" of rails, each having two recesses in each end thereof parallel to the tread of the rails, one of the recesses of each rail extending through the tread of the rail and the first mentioned recess being a continuation of the other and of a smaller bore, and a bridge interposed between the rails composed of an enlarged cylindrical portion fittingv and conforming tothe recesses of the rail ends and truncated onl its upper surface'fto conform and aline with the tread of the rail, and Shanks onopposite sides of the enlarged portion received in the recesses of the smaller bores.

3. Thecombination of rails each having two recesses in each end thereof, one of which recesses is a continuation of the other and of a smaller bore, and a bridge interposed between the rail ends and composed of an enlarged cylindrical portion to fit a recess in an end of each rail, and Shanks on opposite sides of vthe enlarged portion ar- 4. The combination of. rails each-having two recesses in each end thereof, one of which recesses is a continuation of the otlier' and of a smaller bore and the vbottom of the smaller recess is on thesame'level ivith the bottom of the larger recess and a bridge interposed b'et'we'enj'the rail yends and composed of an enlarged central portion to fit a recess in an eind ofv each rail, and Shanks of a uniform cross section on opposite sides of the enlarged portion arranged eccentric- "allythereof and received in the recesses oi' the smaller bores and` preventing rotation of the bridge.

` 5. The combination of rails' each having tivo Vrecesses in each end thereof, one of which recesses is acontinuation ofthe other and of a 'smaller bore and the bottom of the smaller recess is onthe same level with the bottom-ofgthe' largerlrecess andi a ybridge interposed between the rail ends vand con posed` of an enlarged central portion of a uniform-cross section to lit a recess in an end (LA rail :splicingstructure including the iailshavdng axially 'alin'ed recesses in their adjacent ends,r and a bridge having;V an enlarged cylindrical portion provided with :l

truncated upper side, and cvlindrical Shanks projecting from the ends of the enlarged intermediate portion and 'engaging said Are- 'cesses, the said intermediate portion and sh-anksvbeing of auniform cross-section respectively th'roii'ghoiittheir extent, and havingtheir bottom surfaceslying in horizontal planes. CECIL TYMM. 

